Kate Ferdinand posted a rare snap of her one year old son Cree on Thursday afternoon as he spent quality time with his big sister Tia during a fun day out. Kate shared a black-and-white photo of her stepdaughter Tia, 11, snuggling with her baby brother Cree as they sat on top of a horse in a cute moment together. “First time on a horse with big sis,” the proud mum captioned the picture she shared on Instagram stories.